Car A and Car B are both driving towards each other. Car A's speedometer shows that it is going 30 mph. Car B's speedometer shows that is going 45 mph. What is Car B's speed relative to Car A?

Select one:

-120 mph

-45 mph

-30 mph

-30 mph

-75 mph

A person pulls a toboggan for a distance of 13.2m along the snow with a rope directed 31 degree above the snow then tension in the rope is 95N how much work is done on the toboggan by the tension force

An _ is a logical conclusion based on information or evidence

An airplane is heading due south at a speed of 640 km/h. If a wind begins blowing from the southwest at a speed of 70 km/h (average), calculate the following. (a) the velocity (magnitude and direction) of the plane relative to the ground 643.

Name the flower part that elevates the anther.

What Device can be used to increase voltage from a source of direct-current?

A 55kg cart is pushed by a force of 225 n. what is the carts acceleration?

F we wanted to compare muscular endurance between a very large person and a very small person, what method would be the best method to use? a. absolute method b. maxing out c. callisthenic method d. fixed percentage of rm method

After creating a question and forming a hypothesis, what is the next step in the scientific method

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.

Which statements accurately describe the Doppler effect?